Note: 하고 싶지 않다 and 하기 싫다 both mean "I don't want to do." However, In written Korean, 하고 싶지 않다 is more commonly used whereas in spoken Korean, 하기 싫어 is more commonly used. 하기 싫어 literally means "I hate to do."

The bold letters indicate which one is more commonly used.

Rule

Take 다 off a plain form of verbs and attach 고 싶다/고 싶었다/기 싫다/기 싫었다/고 싶어/고 싶었어 etc.

Examples (Written Form)

하다 → 하고 싶다 = I want to do.

먹다 → 먹고 싶다 = I want to eat.

날다 → 날고 싶었다 = I wanted to fly.

놀다 → 놀고 싶지 않았다 = I did't want to play.

마시다 → 마시고 싶지 않았다 = I didn't want to drink.

바나나가 먹고 싶지 않았다 = I didn't want to eat a banana.

하늘에서 날고 싶지 않았다 = I didn't want to fly in the sky.

Examples (Spoken Form)

하다 → 하고 싶어 = I want to do.

먹다 → 먹고 싶어 = I want to eat.

날다 → 날고 싶었어 = I wanted to fly.

놀다 → 놀기 싫어 = I don't want to play.

마시다 → 마시기 싫었어 = I didn't want to drink.

바나나 먹기 싫어 = I don't want to eat a banana.

하늘 날기 싫었어 = I didn't want to fly in the sky.

Questions (Spoken Form)

자고 싶어? = Do you want to sleep?

어. 자고 싶어. = Yes, I want to sleep.

뭐 먹고 싶어? = What do you want to eat?

라면 먹고 싶어. = I want to eat noodles.

어디 가고 싶어? = Where do you want to go?

공원에 가고 싶어. = I want to go to a park.

Formal Form

Formal

Written Form

Present

Past

Positive

하고 싶습니다

하고 싶었습니다

Negative

하고 싶지 않습니다

하기 싫습니다

하고 싶지 않았습니다

하기 싫었습니다

Formal

Spoken Form

Present

Past

Positive

하고 싶어요

하고 싶었어요

Negative

하고 싶지 않아요

하기 싫어요

하고 싶지 않았어요

하기 싫었어요

Note: The informal spoken form is used between close friends or when older people are talking to younger people in informal situations. The formal form is used commonly between adults, by people in formalsituations or when younger people are speaking to older people.

RulesFor the formal written form, the suffix , 다, is replaced by 습니다.For the formal spoken form, attach 요 at the end of a sentence.

Examples (Written Form)

하다 → 하고 싶습니다 = I want to do.

먹다 → 먹고 싶습니다 = I want to eat.

날다 → 날고 싶었습니다 = I wanted to fly.

놀다 → 놀고 싶지 않았습니다 = I did't want to play.

마시다 → 마시고 싶지 않았습니다 = I didn't want to drink.

Examples (Spoken form)

하다 → 하고 싶어요 = I want to do.

먹다 → 먹고 싶어요 = I want to eat.

날다 → 날고 싶었어요 = I wanted to fly.

놀다 → 놀기 싫었어요 = I did't want to play.

마시다 → 마시기 싫었어요 = I didn't want to drink.

More examples

자고 싶어요? = Do you want to sleep?

네. 자고 싶어요. = Yes, I want to sleep.

뭐 먹고 싶어요? = What do you want to eat?

라면 먹고 싶어요. = I want to eat noodles.

어디 가고 싶어요? = Where do you want to go?

공원에 가고 싶어요. = I want to go to a park.

In addition:
When talking about a third person, '고 싶어 한다' is used instead of 고 싶다, and '고 싶어해' instead of 고 싶어.